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    CATION-CHLORIDE CO-TRANSPORTER 1 (CCC1) mediates plant resistance against Pseudomonas syringae.

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    Type
    Article
    Authors
    Han, Baoda
    Jiang, Yunhe
    Cui, Guoxin cc
    Mi, Jianing cc
    Roelfsema, Rob
    Mouille, Grégory
    Sechet, Julien
    Al-Babili, Salim cc
    Aranda, Manuel cc
    Hirt, Heribert
    KAUST Department
    Biological and Environmental Science and Engineering (BESE) Division
    Center for Desert Agriculture
    Marine Science Program
    Plant Science
    Red Sea Research Center (RSRC)
    Date
    2019-12-05
    Online Publication Date
    2019-12-05
    Print Publication Date
    2020-02
    Permanent link to this record
    http://hdl.handle.net/10754/660531
    
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    Abstract
    Plasma membrane (PM) depolarization functions as an initial step in plant defense signaling pathways. However, only a few ion channels/transporters have been characterized in the context of plant immunity. Here, we show that the Arabidopsis (Arabidopsis thaliana) Na+:K+:2Cl- (NKCC) cotransporter CCC1 has a dual function in plant immunity. CCC1 functions independently of PM depolarization and negatively regulates pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI). However, CCC1 positively regulates plant basal and effector-triggered resistance to Pseudomonas syringae pv. tomato (Pst) DC3000. In line with the compromised immunity to Pst DC3000, ccc1 mutants show reduced expression of genes encoding enzymes involved in the biosynthesis of antimicrobial peptides, camalexin, and 4-OH-ICN, as well as Pathogenesis-Related (PR) proteins. Moreover, genes involved in cell wall and cuticle biosynthesis are constitutively downregulated in ccc1 mutants, and the cell walls of these mutants exhibit major changes in monosaccharide composition. The role of CCC1 ion transporter activity in the regulation of plant immunity is corroborated by experiments using the specific NKCC inhibitor bumetanide. These results reveal a function for ion transporters in immunity-related cell wall fortification and antimicrobial biosynthesis.
    Citation
    Han, B., Jiang, Y., Cui, G., Mi, J., Roelfsema, R., Mouille, G., … Hirt, H. (2019). CATION-CHLORIDE CO-TRANSPORTER 1 (CCC1) mediates plant resistance against Pseudomonas syringae. Plant Physiology, pp.01279.2019. doi:10.1104/pp.19.01279
    Publisher
    American Society of Plant Biologists (ASPB)
    Journal
    Plant physiology
    DOI
    10.1104/pp.19.01279
    Additional Links
    http://www.plantphysiol.org/lookup/doi/10.1104/pp.19.01279
    ae974a485f413a2113503eed53cd6c53
    10.1104/pp.19.01279
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC); Marine Science Program; Center for Desert Agriculture

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